Still free version installed even after installing the pro version

I have installed the free version of the gallery a few days ago to see if it fits my needs. I then purchased the pro version, uninstalled the free version and then installed the pro version. But I still only have the features delivered with the free version. Did I do something wrong here?

Thanks for the help

Hello,
Thank you for contacting us

Most likely you have not activated the license,
more details in the documentation
www.balbooa.com/joomla-gallery-documentation/license

Regards,
Vyacheslav, Balbooa.com